Scientists Discover the Oldest Dinosaur Yet
243 million years ago, our planet was arid, the poles were tropical, and the continents were lumped together in one great mass. Turtles, ants and crocodiles all walked the Earth. But one thing scientists weren't sure of was whether dinosaurs had yet appeared on the scene.
Now, however, those doubts have been put to rest thanks to the discovery of what may be the world's oldest dinosaur bones.